[TZubiri]

There's pros and cons to everything.

One advantage of rolling your own:

-minimalism: no code designed for othere -security: not necessarily more secure, but a different risk profile. You are safe from a lot of spearphishing vulns like log4j, but may be open to custom attacks, I think this is an advantage but ymmv. - system knowledge: you can answer questions about your system, to clients and regulators.

- system flexibility: you understand your system you can modify it as needed. Which is not true if you import 1000 dependencies.